利用微结构光纤提高光纤布拉格光栅对横向应力的灵敏度

Sensitivity enhancement of fiber Bragg gratings to transverse stress by using microstructural fibers.

作者信息

Jewart Charles, Chen Kevin P, McMillen Ben, Bails Michael M, Levitan Steven P, Canning John, Avdeev Ilya V

机构信息

Department of Electrical and Computer Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, USA.

出版信息

Opt Lett. 2006 Aug 1;31(15):2260-2. doi: 10.1364/ol.31.002260.

DOI:10.1364/ol.31.002260

PMID:16832452

Abstract

We present simulation and experimental results of fiber Bragg grating responses to transverse stress in microstructure fibers. The grating wavelength shifts and peak splits are studied as a function of external load and fiber orientation. Both simulation and measurement results indicate that the sensitivity of grating sensors to the transverse stress can be enhanced by a factor of eight in a two-hole fiber over that in a standard fiber.

摘要

我们展示了光纤布拉格光栅对微结构光纤中横向应力响应的模拟和实验结果。研究了光栅波长偏移和峰值分裂与外部负载及光纤取向的函数关系。模拟和测量结果均表明，两孔光纤中光栅传感器对横向应力的灵敏度比标准光纤中的灵敏度可提高八倍。